Query: uled
OS: freebsd
Section: 4
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
ULED(4) BSD Kernel Interfaces Manual ULED(4)NAMEuled -- USB LED driverSYNOPSISTo compile this driver into the kernel, place the following lines into your kernel configuration file: device uled device usb Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): uled_load="YES"DESCRIPTIONThe uled driver provides support for the Dream Cheeky WebMail Notifier device. Subsequently, the /dev/uled0 device can be used by userland applications.IOCTLSThe following ioctl(2) commands can be performed on /dev/uled0, which are defined in <dev/usb/uled_ioctl.h>: ULED_GET_COLOR The command returns LED colors with values for RGB. This ioctl(2) takes the following structure: struct uled_color { uint8_t red; uint8_t green; uint8_t blue; }; ULED_SET_COLOR The command sets LED colors with values for RGB. It uses the same structure as above.FILES/dev/uled0 blocking device nodeSEE ALSOohci(4), uhci(4), usb(4)AUTHORSThe uled driver was written by Kevin Lo <kevlo@FreeBSD.org>.BSDSeptember 5, 2014 BSD
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